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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Bike fitting

Old 04-18-12, 10:14 AM
  #1  
EPICBYTES
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Bike fitting

Im developing intense lower back pains after a hour and half of riding. The weird thing I am not 18 years old yet. Im starting thinking maybe i have bad posture, or fitting. My LBS only carries specialized... so they have BG FIT. on BG FIT website says that anyone under 18 years old aren't allowed to take BG FIT... Any ideas where i can get fitted, also cheap... Is fitting worth it?
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Old 04-18-12, 10:30 AM
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abstractform20
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pics?

you may have your saddle too far back, or the bike may be too big.

any injuries?
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Old 04-18-12, 10:37 AM
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Your fit definitely could be off.

Your saddle may be too high, or your stem may be too long or too low...

Or, as already said, you bike may be too big for you.
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Old 04-18-12, 11:20 AM
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im 5'4 and bike is 52 cm, and how can i post pictures on BF?
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Old 04-18-12, 11:31 AM
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Are you relatively new to road cycling? New the bike at least? New to riding this season....? Just trying to suss out what factors other than fit may be playing a part...

BTW, not sure on the BG age requirements but I suspect they don't want to charge/fit sub18yr old because in 3months you rapidly growing young'uns outgrow the fit! Basically no sense in spending/charging bucks when the fit will only last a short time. If money is no object one could always lie... Sure, I'm 19

Edit: I was really joking the last part. I'm not sure but I would imagine some good LBS might help accommodate growing cyclists with a good fit AND some sort of ongoing assistance with the constantly charging size and needs. An adjustable stem seems a good starting point if nothing else...

Last edited by HokuLoa; 04-18-12 at 11:35 AM.
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Old 04-18-12, 11:38 AM
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I was riding since 2 years, intensely. Well i adjusted saddle forward and back occasionally, and remove some spacers too... just trying to find sweetspot... BG should have no age requirements, so they could creep in more profits... since youngers grow rapidly...
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Old 04-18-12, 12:39 PM
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So I gather that your fit was working fine for the last 2yrs and that the back pain is a new feature? How about this season? Are you just now starting again? With time off a lot of peeps lose flexibility/conditioning and when they jump back into it the body is slow to adjust. Basically, I'd start a personal process of elimination to figure out what is causing the problem if there was no problem before. Something you did, didn't do, or changed is the likely culprit. Narrow down to figure that out and you will probably solve your problem. I never dissuade someone from getting a professional fit though especially if they never had one in the first place.

As for BG; they probably could rake in bucks with your approach but they would likely have unhappy parents to offset the financial gains...
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Old 04-18-12, 12:56 PM
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Originally Posted by EPICBYTES View Post
im 5'4 and bike is 52 cm, and how can i post pictures on BF?
Your bike is probably too big for you.
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Old 04-18-12, 12:57 PM
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If you bought your bike at the store that does the BG Fit, I'm fairly sure you could talk them into at least evaluating your seating position, even if they don't do the full on fit. At your age, you should be able to bend into a pretzel, it makes no sense for you to have back pain.

Are you strangely inflexible?

If you want to post pics, one easy way is to sign up for a picasa or photobucket account and then get the direct link, click on the little picture of a tree above the post box and put the link in there. it just surrounds your url link with img tags, no big deal.
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Old 04-18-12, 01:20 PM
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i didn't take a break for two years. only difference i notice is that i am faster... ability to pedal much higher gear ratio easily, Should i stick to low gears and high cadence? maybe its solution?
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Old 04-18-12, 02:00 PM
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Originally Posted by twodownzero View Post
Your bike is probably too big for you.
what? no way. 5'4" on a 52 is not that weird. people that tall typically ride 48-52 deeping on geometry and of course their arm and leg length, torso, etc.
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Old 04-18-12, 02:01 PM
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low back pain can be caused by too little reach. I agree that a pic of the OP on the bike would answer a lot of questions. or a video on a trainer, even.
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Old 04-18-12, 02:31 PM
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Originally Posted by twodownzero View Post
your bike is probably too big for you.
bingo.


unless maybe, a baybe stem
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Old 04-18-12, 03:17 PM
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Originally Posted by EPICBYTES View Post
im 5'4 and bike is 52 cm, and how can i post pictures on BF?
I am 164cm, which is a bit more than 5'4. I was ridding 49cm Specialized Tricross with 100mm steam for almost a year. Last week I took the complete BG Fit and found that this configuration was not optimal for me. The session ended with highering the saddle for about 7mm, proper cleat positioning and the stem changed to 75mm with 14 degrees instead of 100mm and -6 degrees. I can see a difference in my position before and after.
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Old 04-18-12, 04:30 PM
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Its your fitness, not bike fit. I had the same thing at your age. I got off my bike and couldnt straighten up. Working your abdominals and doing squats with light weights is a start to better bike fitness.
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Old 04-18-12, 05:35 PM
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When I got off my bike, i can straighten up. I do core exercises everyday before i go to sleep. I will try to post picture asap
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Old 04-18-12, 05:48 PM
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Originally Posted by ColinL View Post
what? no way. 5'4" on a 52 is not that weird. people that tall typically ride 48-52 deeping on geometry and of course their arm and leg length, torso, etc.
And then you got me at 5'8" on a 50cm.

Although I could probably go to a 52 and be fine. 54? Ehhh.
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Old 04-18-12, 06:29 PM
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I'm 5'7 and ride a 52.

Could be fit, could be a too large bike, could be core strength. Show us a video/pic!
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Old 04-18-12, 08:32 PM
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all I know is that I've had the worst back pain from inadequate reach. this makes you bend the hell out of your back, which some people can do but for most it isn't very comfortable compared to a flat back and bending at the waist.

btw I have hellaciously long arms at 6'0" and I ride a 61cm bike with a 110mm stem and roughly 9cm of saddle-to-bar drop. I could be riding a 58cm in this exact frame with a 130-140mm stem for the same fit but I chose not to. (and sometimes I still question that decision. )
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